Refluting machine



Sept. 17, 1940. r c 5 HONEYCUTT 2,214,883

REFLUTING MACHINE Filed Jan. 11. 1938 2 Sheets-Sheet l C uR ns E HONEYCUTT Patented Sept. 17, 1940 UNITED snares "PATENT orrlcs 6 Claims.

This invention relates to an apparatus for refluting textile rolls and the like so as to provide the rolls with new flutes after they have become worn. It is. a well-known fact that when textile rolls have been used for sometime that the periphery becomes worn, resulting in rounded flutes and consequently, lacking the gripping power necessary to properly effect a drawing of the fibres. In other words, to properly grasp the fibres, it is necessary that the periphery of the roll have properly sharpened flutes and. also be of the proper diameter to conform to the type of stable which is being drafted. 1

It is, therefore, an object of this invention to provide means for rendering fluted textile rolls, which have been worn, capable of use by refluting the same and re-allocating the surface thereof so that the flutes will be built up again to their original position. When the flutes on the 20 rolls have become worn, they cannot be refluted by merely passing a file or a cutter along the old grooves, since this will produce a roll of less cross-sectional area than the new roll. For this reason a cutting roller is employed which traverses the old grooves and presses the metal from the depressions to the periphery, thereby making the outside diameter slightly greater than its original size when new. After this is done, it is necessary to sand the roll down to the desired diameter. This sanding operation will also slightly dull the top of the flutes, but will not affect their biting or gripping qualities.

It is a further object of this invention to provide an apparatus for refluting the spaced bosses on textile rolls which comprises aV-type pressure roller for traversing the flutes of a plurality of bosses, with a resiliently mounted guiding means disposed on each side of said roller for holding the textile roll in position and also for U guiding the V-roller from the flutes of oneboss to the flutes of the other; By'providing this guiding means, it is not necessary to use -a plurality of rollers as the guiding means will always be disposed partially at least on an adjacent boss, or adjacent bosses, to that boss occupied by the V-type roller. Such a construction will insure that the pressure roller will always be directed from a groove in one boss to the corresponding alined groove in the adjacent boss as the roller traverses a plurality of bosses during a refluting operation, and will prevent the cutting roller from contacting the roll at the low places between the bosses.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which:

Figure l is a front elevation of my refluting mechanism;

Figure 2 is a plan view of a portion of Figure 1;

Figure 3 is a transverse cross-sectional view taken along the lines 3-3in Figure 2;

Figure 4 is an exploded isometric View of the refiuting mechanism and its associated guiding means;

Figure 5 is an elevation of two bosses on a drawing roll showing one before the refluting operation and the other afterwards;

Figure 6 is a cross-sectional view taken along the line 6-6 in Figure 5;

Figure 7 is a cross-sectional view taken along the line 'l-'l in Figure 5.

Referring more specifically to the drawings, the numeral 9 denotes a suitable table which is supported by members It, and H. The upper side of table 9 has secured thereto, brackets l2 and E3, which have upstanding end portions M and 15. The brackets l2 and I3 also have mounted thereon blocks Hi and Il and pivoted to these blocks are levers l8 and i9 by means of bolts 20 and 2|, respectively. It will be noted that the levers l8 and H] are pivoted approximately' mid-way their ends (see Figures 2 and 3), the rearwardly projecting ends of the levers being secured to each other by means of a suitable rod 22 and bolts 23 and 24.

The front ends of the levers l8 and IQare joined together by means of a square rod 25, upon which is adjustably secured textile roller supports 25 and 21. Each of the supports 26 and 21 has a V-shaped notch 29 in its upper side in 35 which the ends of a textile drawing roll 30 are adapted to rest. lhe elevation of the roll 30 may be varied during a re-grooving operation, but when the flutes are being reformed, it occupies the position shown in Figures 1 and 3, at which time regrooving pressure roller 32 traverses the entire length of the roll 30 back and forth until the flutes have been built up to the desired height.

Since the regrooving roller 32 operates in substantially the same horizontal plane at all times, it is believed necessary to provide means whereby the roll 30 can be removed from or placed in contact with the V-shaped roller. In order to produce this result a suitable tension spring 38 has been provided, said spring having its lower end secured to the central portion of rod 22 and its upper end secured to over-hanging bracket 39. This bracketis supported by U-shaped member 40, which, in turn, is secured to the table 9. Also p-ivotally secured around the intermediate portion of the rod 22 is a downstanding rod 4|, which has its lower end pivoted as at 42 to foot lever 43. This foot lever has its left-hand end pivoted to cross-rod 44 which is disposed between the supports I and II.

It is seen that the spring 38 normally tends to rotate the supports 26 and 21 downwardly or in a clockwise manner about a point 2| in Figure 3. When it is desired to raise the roll 30 to a position where it will be engaged by the reciprocating refluting roller 32, pressure is applied to the right-hand end of foot lever 43.

The roller 32 is rotatably mounted in slot 45 which is provided between plates 46 and 41, these plates being secured to each other by any suitable means such as screws 48 (Figure 4) Slots 49 and are also provided between these plate,

members 46 and 4'1, which slots are adapted to slidably confine guide plates 5| and 52 respec tively. The lower end of plates 5| and 52 have knife edges 53 and 54 which fit in the grooves between the flutes during a regrooving operation. These knife edges are in direct alineme-nt with the cutting edge of V-shaped roller 32, consequently, these plates 5| and 52 precede and follow the tool 32 as it reciprocates along the drafting roll 30.

The plates 5| and 52 also have vertically disposed slots 55 and 56, respectively, cut therein, said slots being penetrated by suitable transversely disposed bolts 57 and said bolts being mounted in the plates 46 and 41. These bolts penetrate holes 58 which extend through both of the plates 46 and 41. The plates 5| and 52 have compression springs 60 and 6|, respectively, pressing downwardly thereagainst to normally force the lower knife edges 53 and 54 into the flutes of the textile roll 30. The upper ends of springs 60 and GI rest against the lower side of supporting member 53, therefore, the plates will at all times be forced downwardly. It should be noted that the support 63 has the assembly, comprising plates 46 and 41, and their associated parts, secured thereto by any suitable means such as stud bolts 64. The ends of bolts 64 threadably penetrate bores 64a. in plate 41 (Figure 4). The support 63 is mounted for reciprocatory sliding movement in the squared rod 6'! Whose ends are mounted between upright portions l4 and I5 of brackets l2 and I3.

Pivoted to this bracket 53 as at 68 is one end of rod 69 and the other end of the rod is adjustably mounted as at within slot H. The slot 1| is disposed in wheel 72, said wheel being fixedly mounted on shaft 13. Shaft 13 is rotatably mounted in bracket M and its other end has mounted thereon a pulley l5 upon which a belt 16 is adapted to be mounted. This belt is driven by any suitable source of power not shown. As the shaft 13 is rotated by this belt, the rod 69 will cause the bracket 63 and its associated parts to be moved back and forth along the shaft 6'! to cause the tool 32 and the plates 5| and 52 to traverse the flutes in textile roll 30.

It is seen by referring to Figures 1 and 5 that the bosses on textile roll 30 are of greater diameter than their intermediate portions. These intermediate portions must be traversed by the cutting tool 32 during a re-grooving operation since the entire length of the roll and all of the bosses are traversed upon each stroke of the support 63. Were it not for the plates 5| and 52 and their associated springs 60 and 6|, there would be danger of the cutting tool 32 becoming off-center as it passes over one of the low portions and result inthe splitting of a flute on the adjacent boss.

By'providing the guide plates, however, a portion of the plates are always in the boss preceding and the boss following the roller; consequently, there is no danger of the roller becoming off-center when it passes over the low portions of the textile rollers, or inengaging the low places between the bosses. The plates 5| and 52 not only serveas guides for the cutter 32, but also serve to clean the grooves of any foreign matter.

In Figure 5, a pair of bosses H and 18 are shown, the boss 11 being before it is reworked and the boss 18 afterwards. It will be noted that the flutes of the boss 11 are rounded along their periphery and also the depressed portions have a rounded effect. This appearanceof boss 1! is caused by long wear which not only rounds the flutes, but also decreases the outside diameter of the boss. When the cutting tool 32 traverses the flutes, then the depressed portions are pressed radially, thereby increasing the outside diameter of the roll and causing the apicesof the flute to becom more defined and sharpened. After this operation is effected, a sanding operation is necessary to slightly dull the apices of the flutes to prevent the flutes from being sharp enough to cut the fibres which is being processed thereby.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descrip tool having a rolling and cutting disk disposed guide member mounted against rotation on each side of the rolling and cutting members for engaging and following the same groove being followed by the rolling and cutting member, the overall length of the cutting tool and the guide members being greater than the length of a boss and a space between the bosses on the roll.

3. In a machine for reforming worn flutes on spaced bosses on a textile roll, a tool member mounted for reciprocatory movement along the roll, said tool member having a rolling and cutting member therein to engage the groove between a pair of flutes, said tool member also having a guide member resiliently mounted agains rotation on each side of the rolling and cutting member for engaging and following the same groove being followed by the rolling and cutting member, the overall length of the cutting tool and the guide members being greater than the length of a boss and a space. between the bosses on the roll.

4. In a machine for reforming worn flutes on spaced bosses of a textile roll, a tool mounted for reciprocatory movement in alinement with the roll, a rolling and cutting member mounted in said tool for engagement with a groove between a pair of flutes on said roll, a plate member resil iently mounted in said tool on each side of the rolling and cutting member and having a sharpened outer edge for engaging the same groove in which the rolling and cutting member is rollmg.

5. In a machine for reforming the flutes on textile rolls and having a reciprocatory cutting tool, said cutting tool comprising a centrally disposed rolling and cutting member and a. knife edged spring pressed vertically slidable guiding member disposed on each side of the cutting member and in alinement with the cutting member and means for holding a fluted textile roll in the path of said cutting members.

6. A machine for reforming Worn flutes on worn textile rolls and having a reciprocatory cutting tool, said cutting tool having a rotary cutter, a plunger resiliently mounted on each side and in alinement with said cutter and serving as a guide member for said cutter.

CURTIS E. HONEYCUTT. 

